?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Vera+Ladeska%2C+Vera&rft.aulast=Vera+Ladeska&rft.aufirst=Vera&rft.atitle=Pharmacognostical+Studies+and+Determination+of+Total+Flavonoids+of+Paitan+(Tithonia+diversifolia+(Hemsl.)+A.+Gray&rft.title=Pharmacognostical+Studies+and+Determination+of+Total+Flavonoids+of+Paitan+(Tithonia+diversifolia+(Hemsl.)+A.+Gray&rft.genre=article